Lab 02 Programming

Lab 2 Question 1

package l2q1;
import java.util.Scanner;
public class L2Q1 {

    public static void main(String[] args) {
        double c,f;
        Scanner kb = new Scanner(System.in);
        System.out.print("Please enter value of Fahrenheit : ");
        f=kb.nextDouble();
        c=(f-32)/1.8;
        System.out.printf("%.2f Fahrenheit = %.2f Celcius\n",f,c);



    }

}

Lab 2 Question 2

package l2q2;
import java.util.Scanner;
public class L2Q2 {

    public static void main(String[] args) {
        Scanner kb = new Scanner(System.in);
        double P,D,R,Y,M;
        System.out.println("This program will calculate monthly payment for car loan");
        System.out.print("The price of the car : ");
        P=kb.nextDouble();
        System.out.print("\nDownpayment : ");
        D=kb.nextDouble();
        System.out.print("\nInterest rate in % : ");
        R=kb.nextDouble();
        System.out.print("\nLoan duration in year : ");
        Y=kb.nextDouble();
        M=(P-D)*(1+R*Y/100)/(Y*12);
        System.out.printf("\nThe monthly payment is : RM%.2f", M);

    }

}

Lab 2 Question 3

package l2q3;
import java.util.Random;

//Way to declare an array nombor[]=new int[limit_goes_here];

public class L2Q3 {
    public static void main(String[] args) {
        int nombor[]=new int[3],sum=0,ha;
        float ave;
        System.out.println("Random number generator");
        Random cipta = new Random();
        for(ha=0;ha<3;ha++)
        {
            nombor[ha]=cipta.nextInt(101);
            System.out.printf("%d\n",nombor[ha]);
            sum+=nombor[ha];
        }
        System.out.printf("\nThe sum is %d",sum);
        ave=(float) (sum/ha);
        System.out.printf("\nThe average is %.2f\n",ave);
    }

}

Lab 2 Question 4

package l2q4;
import java.util.Scanner;
public class L2Q4{
    public static void main (String args[]){

        int coins[]={50,20,10,5,1},i,piece,rm;
        double money;
        System.out.print("Please enter money : ");
        Scanner kb=new Scanner(System.in);
        money=kb.nextDouble();
        money=money*100.0;
        rm=(int)money;
        for(i=0;i<5;i++)
        {
            piece=rm/coins[i];
            if(piece==0)
                continue;
            System.out.printf("\n%d cents = %d pieces",coins[i],piece);
            rm-=(coins[i]*piece);
        }
    }
}

Lab 2 Question 5

package l2q5;
import java.util.Random;
public class L2q5 {
    public static void main(String[] args) {
        int temp=0,sum=0,rndm;

    Random jeng=new Random();
    rndm=jeng.nextInt(10001);

        System.out.println(rndm);
    while(rndm>0){
        temp=rndm%10;
        sum+=temp;
        rndm/=10;
    }
        System.out.printf("\nThe sum is %d\n",sum);
    }

}

Lab 2 Question 6

package l2q6;
import java.util.Scanner;
public class L2q6 {
    public static void main(String[] args) {

    float P,R,N,Investment;
    Scanner kb=new Scanner(System.in);
        System.out.print("Please enter value of P : ");
        P=kb.nextFloat();
        System.out.print("Please enter value of R (Percentage) : ");
        R=kb.nextFloat();
        System.out.print("Please enter value of Year : ");
        N=kb.nextFloat();
    Investment=(float) (P*(1-Math.pow((R/100),(N+1)))/(1-(R/100)));
        System.out.printf("The investment will be : RM%.2f\n",Investment);
    }

}